Weather: Denver Half Marathon
Historical weather data for race day in May. Use this to plan your race strategy, clothing, and hydration.
13°C
Temperature
Range: 7°C – 19°C
45%
Humidity
Low — comfortable
20%
Rain Chance
Low chance of rain
May
Typical race month
Usually on a Sunday
Conditions
October in Denver features cool, crisp autumn weather with generally clear skies. Mild temperatures and low humidity create ideal running conditions, though morning temperatures can be chilly at Denver's elevation.
What to Wear
Singlet or short sleeve
Ideal racing temperatures
Hydration Strategy
Before the Race
Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.
During the Race
Drink at aid stations every 3-4km. Alternate water and sports drink.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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